That TM doesn't HAVE to be a SrTL, but it certainly helps. If I'm reading your question right, the TL position in question is BR AND Flow. That means you're in a low volume store with only several TL positions available. With only a few TLs in your store, and without having SBUX or Food Ave as SrTLs, that only leaves GSTL, Sales Floor, Pricing & Presentation, and Logistics as possibilities for SrTL. Well, 3 of those 4 positions need to be a SrTL, so the chances are that the hardest position of all those (Logistics) will need to be a SrTL is pretty high.